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4) Stock-based Compensation: Schedule of stock inventive plan changes (Details) - USD ($) | 6 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Dec. 31, 2014 | Dec. 31, 2013
Class A Common Stock |  |  |  |
Shares, Outstanding | 488,543 | 368,340 | 512,795 | 405,133
Shares outstanding | $ 3.25 | $ 2.50 | $ 3.20 | $ 2.41
Shares Exercised | (15,406) | (34,955) |  |
Per Share Shares Exercised |  | $ 1.44 |  |
Shares Cancelled | (8,846) | (1,838) |  |
Per Share Shares cancelled | $ 2.31 | $ 2.92 |  |
Options Exercisable | 409,961 | 325,243 |  |
Options exercisable | $ 2.99 | $ 2.23 |  |
Available options for future grant | $ 266,649 | $ 314,480 |  |
Weighted average contractual term of options outstanding | 7.37 years | 6.77 years |  |
Weighted average contractual term of options exercisable | 6.99 years | 6.42 years |  |
Aggregated intrinsic value of options outstanding | $ 1,698,099 | $ 690,130 |  |
Aggregated intrinsic value of options exercisable | $ 1,534,777 | $ 689,924 |  |
Class C Common Stock |  |  |  |
Shares, Outstanding | 577,568 | 508,656 | 691,591 | 508,656
Shares outstanding | $ 2.62 | $ 2.00 | $ 2.00 | $ 2.00
Shares Exercised | (114,023) |  |  |
Per Share Shares Exercised | $ 2.14 |  |  |
Options Exercisable | 511,318 | 482,406 |  |
Options exercisable | $ 2.34 | $ 1.84 |  |
Available options for future grant |  | $ 105,000 |  |
Weighted average contractual term of options outstanding | 2.69 years | 2.11 years |  |
Weighted average contractual term of options exercisable | 2.35 years | 1.99 years |  |
Aggregated intrinsic value of options outstanding | $ 2,375,472 | $ 1,194,177 |  |
Aggregated intrinsic value of options exercisable | $ 2,242,810 | $ 1,194,177 |  |

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